Phillips 333 series
1 aircraft on the U.S. register carry a Phillips 333 series engine, rated at about 120 horsepower. The Waco ENF SPECIAL is the model most often fitted with it (1 aircraft).
The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as Phillips 333 series. FAA spelling: 333 SERIES.
Fitted to model families
Waco ENF SPECIAL
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Phillips 333 series the component layer
The design is held under 1 type certificate (TC 59, held by Phillips Aviation Company). No FAA order in the current files names this engine series.
Certificates and bulletins
Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.
Connections how this engine series links to the rest of the register
- Indiana 1 of these aircraft
These connections as data: /graph/engine/phillips-333-series.json · about the eFlight graph.
Aircraft newest certificates first · 1
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.